Rim/iw4x-client
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Protect .text segment

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This commit is contained in:
momo5502
2016-02-29 15:49:27 +01:00
parent 6fdf7f887a
commit daa87d2a50
5 changed files with 31 additions and 4 deletions
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6
src/Utils/Hooking.cpp
View File

@ -104,7 +104,13 @@ namespace Utils
void Hook::Nop(void* place, size_t length)
{
DWORD oldProtect;
VirtualProtect(place, length, PAGE_EXECUTE_READWRITE, &oldProtect);
memset(place, 0x90, length);
VirtualProtect(place, length, oldProtect, &oldProtect);
FlushInstructionCache(GetCurrentProcess(), place, length);
}
void Hook::Nop(DWORD place, size_t length)

20
src/Utils/Hooking.hpp
View File

@ -49,7 +49,12 @@ namespace Utils
template <typename T> static void Set(void* place, T value)
{
DWORD oldProtect;
VirtualProtect(place, sizeof(T), PAGE_EXECUTE_READWRITE, &oldProtect);
*static_cast<T*>(place) = value;
VirtualProtect(place, sizeof(T), oldProtect, &oldProtect);
FlushInstructionCache(GetCurrentProcess(), place, sizeof(T));
}
@ -60,7 +65,12 @@ namespace Utils
template <typename T> static void Xor(void* place, T value)
{
DWORD oldProtect;
VirtualProtect(place, sizeof(T), PAGE_EXECUTE_READWRITE, &oldProtect);
*static_cast<T*>(place) ^= value;
VirtualProtect(place, sizeof(T), oldProtect, &oldProtect);
FlushInstructionCache(GetCurrentProcess(), place, sizeof(T));
}
@ -71,7 +81,12 @@ namespace Utils
template <typename T> static void Or(void* place, T value)
{
DWORD oldProtect;
VirtualProtect(place, sizeof(T), PAGE_EXECUTE_READWRITE, &oldProtect);
*static_cast<T*>(place) |= value;
VirtualProtect(place, sizeof(T), oldProtect, &oldProtect);
FlushInstructionCache(GetCurrentProcess(), place, sizeof(T));
}
@ -82,7 +97,12 @@ namespace Utils
template <typename T> static void And(void* place, T value)
{
DWORD oldProtect;
VirtualProtect(place, sizeof(T), PAGE_EXECUTE_READWRITE, &oldProtect);
*static_cast<T*>(place) &= value;
VirtualProtect(place, sizeof(T), oldProtect, &oldProtect);
FlushInstructionCache(GetCurrentProcess(), place, sizeof(T));
}